curl -sLf https://raw.githubusercontent.com/qqdasb/termux-desktop-xfce/main/install.sh | bash
termux-x11 {Your Display} &
export DISPLAY={Your display}
startdesktop-xfce4
And then open termux-x11 app, you will see the desktop start.
termux-x11 {Your Display} &
export DISPLAY={Your display}
startdesktop-xfce4-gl4es